docs: def mv(hdfs_src, hdfs_dst):
      """Move a file on hdfs
  
      :param hdfs_src: Source (str)
      :param hdfs_dst: Destination (str)
      :raises: IOError: If unsuccessful
      """
      cmd = "hadoop fs -mv %s %s" % (hdfs_src, hdfs_dst)
      rcode, stdout, stderr = _checked_hadoop_fs_command(cmd)